drm/msm/msm_gem.c

289 	struct vm_area_struct *vma = vmf->vma;
290 	struct drm_gem_object *obj = vma->vm_private_data;
321 	pgoff = (vmf->address - vma->vm_start) >> PAGE_SHIFT;
328 	ret = vmf_insert_pfn(vma, vmf->address, pfn);
369 	struct msm_gem_vma *vma;
373 	vma = msm_gem_vma_new(aspace);
374 	if (!vma)
377 	list_add_tail(&vma->list, &msm_obj->vmas);
379 	return vma;
386 	struct msm_gem_vma *vma;
390 	list_for_each_entry(vma, &msm_obj->vmas, list) {
391 		if (vma->aspace == aspace)
392 			return vma;
398 static void del_vma(struct msm_gem_vma *vma)
400 	if (!vma)
403 	list_del(&vma->list);
404 	kfree(vma);
417 	struct msm_gem_vma *vma;
421 	list_for_each_entry(vma, &msm_obj->vmas, list) {
422 		if (vma->aspace) {
423 			msm_gem_vma_purge(vma);
425 				msm_gem_vma_close(vma);
435 	struct msm_gem_vma *vma, *tmp;
439 	list_for_each_entry_safe(vma, tmp, &msm_obj->vmas, list) {
440 		del_vma(vma);
448 	struct msm_gem_vma *vma;
452 	vma = lookup_vma(obj, aspace);
454 	if (!vma) {
457 		vma = add_vma(obj, aspace);
458 		if (IS_ERR(vma))
459 			return vma;
461 		ret = msm_gem_vma_init(vma, obj->size,
464 			del_vma(vma);
468 		GEM_WARN_ON(vma->iova < range_start);
469 		GEM_WARN_ON((vma->iova + obj->size) > range_end);
472 	return vma;
475 int msm_gem_pin_vma_locked(struct drm_gem_object *obj, struct msm_gem_vma *vma)
496 	return msm_gem_vma_map(vma, prot, msm_obj->sgt, obj->size);
538 	struct msm_gem_vma *vma;
543 	vma = get_vma_locked(obj, aspace, range_start, range_end);
544 	if (IS_ERR(vma))
545 		return PTR_ERR(vma);
547 	ret = msm_gem_pin_vma_locked(obj, vma);
549 		*iova = vma->iova;
587 	struct msm_gem_vma *vma;
591 	vma = get_vma_locked(obj, aspace, 0, U64_MAX);
592 	if (IS_ERR(vma)) {
593 		ret = PTR_ERR(vma);
595 		*iova = vma->iova;
605 	struct msm_gem_vma *vma = lookup_vma(obj, aspace);
607 	if (!vma)
610 	msm_gem_vma_purge(vma);
611 	msm_gem_vma_close(vma);
612 	del_vma(vma);
622  * Setting an iova of zero will clear the vma.
633 		struct msm_gem_vma *vma;
634 		vma = get_vma_locked(obj, aspace, iova, iova + obj->size);
635 		if (IS_ERR(vma)) {
636 			ret = PTR_ERR(vma);
637 		} else if (GEM_WARN_ON(vma->iova != iova)) {
655 	struct msm_gem_vma *vma;
658 	vma = lookup_vma(obj, aspace);
659 	if (!GEM_WARN_ON(!vma)) {
927 	struct msm_gem_vma *vma;
974 		list_for_each_entry(vma, &msm_obj->vmas, list) {
976 			if (vma->aspace) {
977 				struct msm_gem_address_space *aspace = vma->aspace;
992 				vma->aspace, vma->iova,
993 				vma->mapped ? "mapped" : "unmapped");
1065 static int msm_gem_object_mmap(struct drm_gem_object *obj, struct vm_area_struct *vma)
1069 	vm_flags_set(vma, VM_PFNMAP | VM_DONTEXPAND | VM_DONTDUMP);
1070 	vma->vm_page_prot = msm_gem_pgprot(msm_obj, vm_get_page_prot(vma->vm_flags));
1199 		struct msm_gem_vma *vma;
1206 		vma = add_vma(obj, NULL);
1208 		if (IS_ERR(vma)) {
1209 			ret = PTR_ERR(vma);
1213 		to_msm_bo(obj)->vram_node = &vma->node;
1223 		vma->iova = physaddr(obj);